@Article{ manmen99, author = { Mantegazza, Carlo and Mennucci, Andrea C. G. }, title = { Hamilton-Jacobi Equations and Distance Functions on Riemannian Manifolds }, journal = { Appl. Math. Opt. }, year = { 2003 }, volume = { 47 }, number = { 1 }, pages = { 1-25 }, URL = { http://cvgmt.sns.it/paper/274/ }, note = { cvgmt preprint} }